After bringing it to a boil, could I move it to a slow-cooker for the long simmer? I need to leave the house and i'd rather leave that unattended than a gas burner.
Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)
That should be fine, but you may want to leave it uncovered -- there is a lot of liquid that cooks off during the simmering phase.
I believe you'd have to have the crockpot preheated -- maybe put a quart or so of water in it, leave on a high setting so the water is at least scalded (or pour it in at a boil). Otherwise your temperature will be too low for cooking to continue, and a low temperature might put the sausage at risk of bacterial growth.
Another solution would be to complete cooking while you're home and refrigerate, then reheat later.
He hid the recipe from me!
What Are "Ham Balls"?
One-Bowl Chocolate Cake
The Unbeatable Cast Iron Sear
5 Ready-in-a-Flash Dinners
Topping the Charts